Usually a large male will lead a gorilla family. This can be a silverback, and males of 11 or 12 years of age are the ones that go grey in this manner. 5 people found this useful.
Fetal movement will usually be felt regularly after the 20th week of pregnancy. Any change in fetal movement (other than a 1-2 hour sleep cycle that some fetuses have) should be discussed with your physician. Decreased or absent fetal movement may be a sign of fetal distress. Kick tests (fetal movement counts) are used to monitor fetal wellbeing. You should monitor fetal movements (not just kicks) over a period of time (30-60 minutes). There is no right or wrong number of movements. You are trying to establish a baseline of fetal movements for your baby.
It is important for the fetus to practice all the movements that will be needed at birth for two reasons: Firstly it helps the brain and nervous system to develop well; Secondly it allows the joints, bones and muscles to form correctly; Fetal breathing. The fetus does not actually breathe in the womb. The mother breathes for the fetus, and essential oxygen is passed to the fetus through the umbilical cord. The fetus does make breathing-like movements though. These begin at 9 weeks of pregnancy and allow the fetus to practice this breathing movement. This means that when the baby is born, he/she will be able to breathe straight away. Eye movements. The fetus begins to move his/her eyes during the 14th week of pregnancy.